{"product_id":"rich-solar-12v-40a-dc-dc-battery-charger-for-rvs-vans-boats-off-grid-systems-lithium-lead-acid","title":"RICH SOLAR 12V 40A DC-DC Battery Charger for RVs, Vans, Boats \u0026 Off-Grid Systems | Lithium \u0026 Lead-Acid","description":"\u003cp data-start=\"21\" data-end=\"258\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe RICH SOLAR 12V 40A DC-DC Battery Charger is designed for RVs, vans, boats, and off-grid systems. It combines an isolator and charger in one unit and supports AGM, Flooded, Gel, and Lithium batteries for flexible system compatibility.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"260\" data-end=\"562\"\u003eThis 40A charger works with both smart and traditional alternators and provides charging modes for lithium and lead-acid batteries. Built-in circuit protection, battery isolation, engine-safe charging, and low-current mode help support safe and reliable battery operation in mobile and off-grid setups.\u003c\/p\u003e\n\u003ch1\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003e12V 20A\/40A\/60A DC-DC Battery Charger\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCombines isolator and charger\u003c\/li\u003e\n\u003cli\u003eCompatible with alternators\u003c\/li\u003e\n\u003cli\u003eSupports AGM, Flooded, Gel, and Lithium batteries\u003c\/li\u003e\n\u003cli\u003eSuitable for RV, Marine, Van, and Off-grid applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cimg style=\"width: 100%; max-width: 460px; height: auto; display: block; margin: 20px auto;\" alt=\"\" src=\"https:\/\/richsolar.com\/cdn\/shop\/files\/Power-Your-System-Without-Limits.jpg?v=1769581276\u0026amp;width=536\"\u003e\u003c\/h4\u003e\n\u003cp\u003ePower Your System Without Limits\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMulti-Battery Ready: Works with 12V AGM, Flooded, Gel, and Lithium batteries. Simply use the Mode Selection Switch to choose the correct battery type for flexible and safe upgrades.\u003c\/li\u003e\n\u003cli\u003eAlternator Friendly: Supports both smart and traditional alternators through the 12V starter battery connection.\u003c\/li\u003e\n\u003cli\u003eBuilt for Any Setup: Ideal for RVs, vans, boats, and off-grid systems, minimizing compatibility issues and installation effort.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cimg style=\"width: 100%; max-width: 460px; height: auto; display: block; margin: 20px auto;\" alt=\"\" src=\"https:\/\/richsolar.com\/cdn\/shop\/files\/Charge-Smarter_-Last-Longer.jpg?v=1769581280\u0026amp;width=536\"\u003e\u003c\/h4\u003e\n\u003cp\u003eCharge Smarter, Last Longer\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdaptive Charging for Lithium: Adaptive Charging for Lithium - 2-stage charging safely reactivates over-discharged lithium batteries and charges them to 100%.\u003c\/li\u003e\n\u003cli\u003eOptimized Lead-Acid Charging: 3-stage charging maximizes battery life and charges to 100%.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cimg style=\"width: 100%; max-width: 460px; height: auto; display: block; margin: 20px auto;\" alt=\"\" src=\"https:\/\/richsolar.com\/cdn\/shop\/files\/Keep-Your-System-Safe.jpg?v=1769581284\u0026amp;width=536\"\u003e\u003c\/h4\u003e\n\u003cp\u003eKeep Your System Safe\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSmart Circuit Protection: Guards against over-voltage, over-temperature, and reverse polarity to keep your system safe.\u003c\/li\u003e\n\u003cli\u003eBattery Isolation: Prevents reverse current between batteries, protecting both the starter and auxiliary batteries.\u003c\/li\u003e\n\u003cli\u003ePeace of Mind: Ensures safe, worry-free operation in RVs, vans, boats, and off-grid systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cimg style=\"width: 100%; max-width: 460px; height: auto; display: block; margin: 20px auto;\" alt=\"\" src=\"https:\/\/richsolar.com\/cdn\/shop\/files\/Safe_-Reliable-Battery-Operation.jpg?v=1769581288\u0026amp;width=536\"\u003e\u003c\/h4\u003e\n\u003cp\u003eSafe, Reliable Battery Operation\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEngine-Safe Charging: D+ ignition terminal charges only when the engine is running, safeguarding the starter battery.\u003c\/li\u003e\n\u003cli\u003eLow-Current Mode: LC terminal supports small alternators or weak power sources, preventing system overload.\u003c\/li\u003e\n\u003cli\u003eTemperature-Adaptive Charging: RJ11 sensor port adjusts voltage for cold or hot environments to extend battery life (not for lithium batteries). *D+, LC cables, and a temperature sensor are not included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eVersatile Charging for All Setups\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRV\u003c\/li\u003e\n\u003cli\u003eVan\u003c\/li\u003e\n\u003cli\u003eMarine \u0026amp; Boats\u003c\/li\u003e\n\u003cli\u003eOff-Grid Cabins\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 10px; text-align: left;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 10px; text-align: left;\"\u003eRS-DC20\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 10px; text-align: left;\"\u003eRS-DC40\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 10px; text-align: left;\"\u003eRS-DC60\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e20A Battery Charger\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e40A Battery Charger\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e60A Battery Charger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\u003cstrong\u003eInput Nominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e12VDC\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e12VDC\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e12VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\u003cstrong\u003eOperating Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e10–16VDC\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e10–16VDC\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e10–16VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\u003cstrong\u003eOutput Nominal Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e250w\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e500w\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e750w\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\u003cstrong\u003eOutput Nominal Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e20A\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e40A\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e60A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\u003cstrong\u003eOperating Current Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e18-22A\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e37-43A\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e55-65A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e4.0 lb\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e4.9 lb\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e6.2 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e8.4 * 7.4 * 3.1 in\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e10.3 * 7.4 * 3.1 in\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e12.3 * 7.4 * 3.1 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\u003cstrong\u003eEfficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\u0026gt;85%, @14VDC, 30% load\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\u0026gt;85%, @14VDC, 30% load\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\u0026gt;85%, @14VDC, 30% load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\u003cstrong\u003eBattery Charging Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e2-stage for lithium; 3-stage for lead-acid\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e2-stage for lithium; 3-stage for lead-acid\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e2-stage for lithium; 3-stage for lead-acid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eDownloads\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/4127\/3251\/files\/1_c9f7d516-2342-4697-9333-6b369ec5e26d.pdf?v=1782383345\"\u003e\u003cstrong\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/4127\/3251\/files\/2_09a9f00a-e526-46bc-ba0a-fac5a09535f2.pdf?v=1782383346\"\u003e\u003cstrong\u003e\u003cspan\u003eManual\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis product is covered by the official RICH SOLAR manufacturer limited warranty. Warranty terms, coverage period, and claim requirements are provided by RICH SOLAR.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/richsolar.com\/pages\/warranty\" rel=\"noopener\" target=\"_blank\"\u003e View RICH SOLAR Warranty Details \u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv style=\"width: 100%; margin: 0 auto; padding: 0;\"\u003e\n\u003cdiv style=\"width: 100%; margin: 0 auto; padding: 0;\"\u003e\n\u003cdiv style=\"width: 100%; min-height: 450px; background-image: linear-gradient(rgba(0,0,0,0.38), rgba(0,0,0,0.38)), url('https:\/\/richsolar.com\/cdn\/shop\/files\/New-RICH-SOLAR-Office-mobile_d931110a-628a-4b30-ba97-df0424a5eecf.jpg?v=1778166617\u0026amp;width=480'); background-size: cover; background-position: center; background-repeat: no-repeat; box-sizing: border-box; padding: 60px 7%; font-family: Arial, Helvetica, sans-serif; display: flex; align-items: center;\"\u003e```\n\u003cdiv style=\"max-width: 620px; text-align: center; color: #ffffff;\"\u003e\n\u003ch2 style=\"margin: 0 0 25px 0; font-size: 44px; line-height: 1.2; font-weight: 800; color: #ffffff;\"\u003eWhy Choose RICH SOLAR\u003c\/h2\u003e\n\u003cp style=\"margin: 0 auto 35px auto; font-size: 16px; line-height: 1.6; font-weight: 600; color: #ffffff;\"\u003eRICH SOLAR has been a leader in the off-grid solar industry since 2005, with a focus on bringing the world's best solar products to market while providing world-class customer service.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; justify-content: center; gap: 55px; flex-wrap: wrap;\"\u003e\n\u003cdiv style=\"text-align: center; width: 140px;\"\u003e\n\u003cdiv style=\"width: 52px; height: 52px; background: #ff5a00; border-radius: 8px; display: flex; align-items: center; justify-content: center; margin: 0 auto 12px auto;\"\u003e\u003csvg style=\"display: block;\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"28\" width=\"28\"\u003e\n          \u003cpath stroke-linejoin=\"round\" stroke-width=\"1.8\" stroke=\"#ffffff\" d=\"M3 7h11v9H3V7z\"\u003e\u003c\/path\u003e\n          \u003cpath stroke-linejoin=\"round\" stroke-width=\"1.8\" stroke=\"#ffffff\" d=\"M14 10h3l3 3v3h-6v-6z\"\u003e\u003c\/path\u003e\n          \u003ccircle stroke-width=\"1.8\" stroke=\"#ffffff\" r=\"1.7\" cy=\"18\" cx=\"7\"\u003e\u003c\/circle\u003e\n          \u003ccircle stroke-width=\"1.8\" stroke=\"#ffffff\" r=\"1.7\" cy=\"18\" cx=\"17\"\u003e\u003c\/circle\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#ffffff\" d=\"M5 10h6M5 13h4\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; font-weight: bold; color: #ffffff;\"\u003eFree Shipping\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; width: 140px;\"\u003e\n\u003cdiv style=\"width: 52px; height: 52px; background: #ff5a00; border-radius: 8px; display: flex; align-items: center; justify-content: center; margin: 0 auto 12px auto;\"\u003e\u003csvg style=\"display: block;\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"28\" width=\"28\"\u003e\n          \u003cpath stroke-linejoin=\"round\" stroke-width=\"1.8\" stroke=\"#ffffff\" d=\"M4 10l8-5 8 5v9H4v-9z\"\u003e\u003c\/path\u003e\n          \u003cpath stroke-linejoin=\"round\" stroke-width=\"1.8\" stroke=\"#ffffff\" d=\"M8 19v-6h8v6\"\u003e\u003c\/path\u003e\n          \u003cpath stroke-width=\"1.8\" stroke=\"#ffffff\" d=\"M10 13v6M14 13v6\"\u003e\u003c\/path\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#ffffff\" d=\"M7 10h10\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; font-weight: bold; color: #ffffff;\"\u003eU.S. Local Warehouse\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; width: 140px;\"\u003e\n\u003cdiv style=\"width: 52px; height: 52px; background: #ff5a00; border-radius: 8px; display: flex; align-items: center; justify-content: center; margin: 0 auto 12px auto;\"\u003e\u003csvg style=\"display: block;\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"28\" width=\"28\"\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#ffffff\" d=\"M5 13v-2a7 7 0 0 1 14 0v2\"\u003e\u003c\/path\u003e\n          \u003cpath stroke-linejoin=\"round\" stroke-width=\"1.8\" stroke=\"#ffffff\" d=\"M5 13h3v5H5v-5zM16 13h3v5h-3v-5z\"\u003e\u003c\/path\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#ffffff\" d=\"M19 18c0 2-2 3-5 3h-2\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; font-weight: bold; color: #ffffff;\"\u003eLifetime Service\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n```\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Rich Solar","offers":[{"title":"40A","offer_id":47807250366627,"sku":"RS-DC40","price":127.99,"currency_code":"USD","in_stock":true},{"title":"20A","offer_id":47807250399395,"sku":"RS-DC20","price":95.99,"currency_code":"USD","in_stock":true},{"title":"60A","offer_id":47807250432163,"sku":"RS-DC60","price":159.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/4127\/3251\/files\/RS-DC6060ADC-DCCharger_1.webp?v=1782383755","url":"https:\/\/wildhavencurator.com\/products\/rich-solar-12v-40a-dc-dc-battery-charger-for-rvs-vans-boats-off-grid-systems-lithium-lead-acid","provider":"Wildhaven Curator","version":"1.0","type":"link"}